I went on craigslist, and now get stuff showing undesirable stuff on PFF. Very annoying.
Facebook sends me all sorts of spam. The subject line poses queries such as, "do you know john smith and 13 others?" It is very annoying. People add your info to facebook without your permission, tag you in photos without your permission, etc. Very invasive. If it weren't illegal and unethical, I would block facebook on several core routers, which would kill facebook. It created plenty of uproar when I blocked facebook on several mail servers and firewalls. Technically, I blocked social media, but in less than 5 minutes had an office full of people complaining about facebook.
Lately, twitter is also sending me spam.